Question

The _____ contains the ____ , which produce(s) action potentials along the auditory nerve.

a) Retina; rods and cones
b) Cochlea; hair cells
c) Optic nerve; ganglion cells
d) Lens; ciliary muscles

Answer 1

The cochlea contains the hair cells that produce action potentials along the auditory nerve when stimulated by fluid movements caused by sound waves.

Step-by-step explanation:

The structure that contains the receptors, which produce action potentials along the auditory nerve, is the cochlea; the receptors themselves are known as hair cells. When sound waves create fluid movements inside the cochlea, the basilar membrane on which the organ of Corti sits flexes, causing the hair cells' stereocilia to bend. This bending initiates action potentials in the hair cells, and these signals are conveyed via the auditory nerve to the brain for auditory processing. So, the correct answer to the question—the _____ contains the _____, which produce(s) action potentials along the auditory nerve—is b) Cochlea; hair cells.